Efficient: 
perl -ne'BEGIN{$/=\65536} $a+=tr/\n//; END{print"$a\n"}' file

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Pity there's no way to set $/ to a reference to a number using a switch.

Makeshifts last the longest.

In reply to Re^2: what's this loo code? (*slurp*) by Aristotle
in thread what's this loo code? by John M. Dlugosz

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